Document details

Transancestral mapping and genetic load in systemic lupus erythematosus

Author(s): Langefeld, C. ; Ainsworth, H. ; Cunninghame Graham, D. ; Kelly, J. ; Comeau, M. ; Marion, M. ; Howard, T. ; Ramos, P. ; Croker, J. ; Morris, D. ; Sandling, J. ; Almlöf, J. ; Acevedo-Vásquez, E. ; Alarcón, G. ; Babini, A. ; Baca, V. ; Bengtsson, A. ; Berbotto, G. ; Bijl, M. ; Brown, E. ; Brunner, H. ; Cardiel, M. ; Catoggio, L. ; Cervera, R. ; Cucho-Venegas, J. ; Dahlqvist, S. ; D'Alfonso, S. ; Da Silva, B. ; de la Rúa Figueroa, I. ; Doria, A. ; Edberg, J. ; Endreffy, E. ; Esquivel-Valerio, J. ; Fortin, P. ; Freedman, B. ; Frostegård, J. ; García, M. ; de la Torre, I. ; Gilkeson, G. ; Gladman, D. ; Gunnarsson, I. ; Guthridge, J. ; Huggins, J. ; James, J. ; Kallenberg, C. ; Kamen, D. ; Karp, D. ; Kaufman, K. ; Kottyan, L. ; Kovács, L. ; Laustrup, H. ; Lauwerys, B. ; Li, Q. ; Maradiaga-Ceceña, M. ; Martín, J. ; McCune, J. ; McWilliams, D. ; Merrill, J. ; Miranda, P. ; Moctezuma, J. ; Nath, S. ; Niewold, T. ; Orozco, L. ; Ortego-Centeno, N. ; Petri, M. ; Pineau, C. ; Pons-Estel, B. ; Pope, J. ; Raj, P. ; Ramsey-Goldman, R. ; Reveille, J. ; Russell, L. ; Sabio, J. ; Aguilar-Salinas, C. ; Scherbarth, H. ; Scorza, R. ; Seldin, M. ; Sjöwall, C. ; Svenungsson, E. ; Thompson, S. ; Toloza, S. ; Truedsson, L. ; Tusié-Luna, T. ; Vasconcelos, C. ; Vilá, L. ; Wallace, D. ; Weisman, M. ; Wither, J. ; Bhangale, T. ; Oksenberg, J. ; Rioux, J. ; Gregersen, P. ; Syvänen, A. ; Rönnblom, L. ; Criswell, L. ; Jacob, C. ; Sivils, K. ; Tsao, B. ; Schanberg, L. ; Behrens, T. ; Silverman, E. ; Alarcón-Riquelme, M. ; Kimberly, R. ; Harley, J. ; Wakeland, E. ; Graham, R. ; Gaffney, P. ; Vyse, T.

Date: 2017

Persistent ID: http://hdl.handle.net/10400.16/2231

Origin: Repositório Científico da Unidade Local de Saúde de Santo António (ULSSA)


Description

Systemic lupus erythematosus (SLE) is an autoimmune disease with marked gender and ethnic disparities. We report a large transancestral association study of SLE using Immunochip genotype data from 27,574 individuals of European (EA), African (AA) and Hispanic Amerindian (HA) ancestry. We identify 58 distinct non-HLA regions in EA, 9 in AA and 16 in HA (∼50% of these regions have multiple independent associations); these include 24 novel SLE regions (P<5 × 10-8), refined association signals in established regions, extended associations to additional ancestries, and a disentangled complex HLA multigenic effect. The risk allele count (genetic load) exhibits an accelerating pattern of SLE risk, leading us to posit a cumulative hit hypothesis for autoimmune disease. Comparing results across the three ancestries identifies both ancestry-dependent and ancestry-independent contributions to SLE risk. Our results are consistent with the unique and complex histories of the populations sampled, and collectively help clarify the genetic architecture and ethnic disparities in SLE.

Document Type Journal article
Language English
Contributor(s) Repositório Científico da Unidade Local de Saúde de Santo António
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